As private companies race to build orbital habitats and government agencies sketch out Mars timelines, a fundamental ...

Scientists have taken a close look at our activity within the solar system to determine where to look for signals from intelligent alien life. The findings apply if those extraterrestrials explore ...

Humanity has never been fully satisfied with this side of the horizon. Our ancestors crested mountains and crossed oceans until our species filled every corner of the world. We invented machines for ...

"If reproduction is ever to occur beyond Earth, it must do so with a clear commitment to safety, transparency and ethical integrity." ...

Researchers should urgently think about how humans can reproduce in space, experts have said. As humanity looks towards living beyond Earth, we need to understand how human reproduction will actually ...

Three books push back on a rising tide of optimism about space settlements. Elon Musk and Jeff Bezos are bitter rivals in the commercial space race, but they agree on one thing: Settling space is an ...

MERRITT ISLAND, Fla. – About 250 miles above earth, the International Space Station remains in constant orbit around the planet. “It's an amazing facility,” said retired NASA astronaut Rex Walheim.

As commercial spaceflight draws ever closer and time spent in space continues to extend, the question of reproductive health beyond the bounds of planet Earth is no longer theoretical but now ...

The first time you experience weightlessness in space, Tom Marshburn told me, all the noise and pressure of launch suddenly disappear. One moment, the roar of engines shakes every bone in your body; ...

I mostly keep all four paws on the ground. It’s hard to imagine living out in space. I asked my friend Erica Crespi about it. She’s a biologist at Washington State University. She studies how animals ...